We look for how isolated the volume controls are. In other terms, when your fingers look for the buttons, how many do they find? If it’s two, that’s uncomplicated. 3 is similar, just with a play/pause button in the center. But far more than that, we have to recollect https://www.bluetoothspeaker.top/new-coming-cube-shape-wireless-bluetooth-speaker-portable-metal-mesh-waterproof/